Author
Topic: Tank Flush Suddenly INOP. (Read 436 times)

This weekend I had an issue with my tank flush. This was a sudden thing. I have not had any indication of a problem prior. After dumping tanks, I turned on the water to the tank flush and routinely I have been able to hear the spray working inside the tanks. Tuesday night when I started the flush I heard nothing. There was water in my drain hose but I saw no flow. I lifted the hose to drain any water out of it and checked it a few seconds later and there was only smallest amount of water that had collected in the hose.

I turned the water off, disconnected the hose, and turned the water back on to make sure I did not have a blockage in my supply line. That was fine. Inspected the hose connection in the convenience center. That appeared OK. I removed the panel in the storage area covering the back side of the convenience center connections. I inspected the tubing and connections, disconnecting and reconnecting again looking for a blockage. I did not find anything.

Removed what looked like a back flow preventer from the tank flush line and checked that for any damage or obvious signs of blockage. It seemed fine. I am not sure that it is passing water as I didnít want to reconnect the hose and try to flow water that way at the campground. I will be checking that this afternoon when I get home from work.

Backflow preventer could have just been stuck. Now that you removed it and actuated it, try it again, or the spray end could be clogged. I have also heard of a kink in the line where the hose connects to the tank.

Thanks, Jason. I think it would be very unusual for it all of a sudden to happen. I mean a kink in the hose at the tank. Unless there was some tubing support that failed dropping the hard line and kinking a flexible section? I imiagined it was hard tubed to the nozzle.

Right. I believed that there are nozzles in at least a couple of the tanks. There is no flow coming from any. Will post pictures, video if applicable later, Hopefully it is the backflow preventer. I can work around that.

Well, blowing it down didn't help, elevated water pressure didn't help, water hamm er didn't help. Looks like a service call at the end of the season. Under belly is one piece. I will have my hands full if I go after it.

Your going to have to drop the underbelly, or cut it. if you cut 3 sides and leave it connected at the forward section you can pull the access down like a hatch on a hinge and tape it back up with duct or gorilla tape when finished. I did this on my other trailer to fix a grey tank valve.